Unit 8 A green world,What did the world use to be?,It used to be a green world.,What is the world like now ?,There is much air pollution and waste .,How can we live a green life ?,reduce v. 减少，降低,e.g. We can reduce air pollution by riding bicycle.,Lets learn some ways to live a green life.,turn off 关上（开关）,e.g. We can save energy by turning off the lights when we leave.,recycle v. 回收利用，循环利用,e.g. We can protect the environment by recycling things.,cause v. 导致；造成,e.g. Careless driving causes traffic accident. 粗心驾驶导致了交通事故。,take a shower,e.g. We can save water by taking shorter showers .,The class 1, Grade 8 students are talking about ways to live a green life. Look at the pictures below and match them with the correct sentences.,A green life,a. We can reduce air pollution by riding bicycles.,b. We can save water by taking shorter showers.,c. We can save energy by turning off the lights when we leave a room.,d. We can protect the environment by recycling waste.,We can ride bicycles _. We can take shorter showers _. We can turn off the lights _. We can recycle waste _.,to reduce air pollution,to save water,to save energy,to protect the environment,Listen and answer,1. How did Kitty go to school in the past? 2. What about now? 3. What does Millie think she should do to live a green life?,Her father used to drive her to school.,They take the underground now.,She thinks its wise for people to choose public transport and ride bicycles.,4. What about Daniel? 5. What about Sandy?,He thinks we can take shorter showers to save water.,She thinks we should remember to turn off the lights when we leave a room.,Work in pairs and use the conversation as a model . One plays the role of “Mr. Wu” , others are Kitty, Millie , Daniel and Sandy.,Three minutes is enough.,Act out the conversation,Listen and answer,1. What is Hobo going to do? 2. Will more trees be planted this year? 3. What does Eddie like doing? 4. What will Eddie plant?,He is going to plant trees.,Yes. Trees are good for us.,He likes digging in the garden.,He will plant breadfruit trees.,1. Will more trees be planted this year? 今年更多的树将会被种植吗？ 句中will be planted 意思是“将会被种植”，是一般将来时的被动语态。 e.g. The panda will be sent to the zoo tomorrow. 这只大熊猫明天将被送到动物园。,Language points,2. We can protect the environment by recycling things. 我们可以通过回收利用东西来保护环境。 We can save energy by turning off the lights. 我们可以通过关灯来节约能源。,by doing ,表示通过做某事,by 后接人，用于被动语态,The operations are done by volunteer doctors.,3. My dad used to drive me to school. 我爸爸过去常常开车送我去学校。 句中used to do sth. 意思是“过去常常做某 事，其后接动词原形。 e.g. They used to spend money on clothes. 他们过去常常用在衣服上 。,4. Its wise for people to choose public transport or ride bicycles. 对人们来说选择公共交通或骑自行车是明智的。 It is + adj. + for sb. + to do sth. 意思是“对某人来说做什么事情怎么样”。 常用于此句型的形容词有 important, difficult, dangerous, necessary, useful, possible等. 此句型可以转换成To do sth. is + adj.。,e.g. It is very important for students to learn English well. 对学生们来说学好英语是很重要的。,It is + adj. + of + sb. + to do sth.，常用于此句型的形容词有good, kind, nice, clever, wise ,wrong bad 等，用来对人的性格、品质等进行说明.,e.g. 你这样说真是太好了。 Its very kind of you to say so.,根据汉语提示写单词。 1. Is he _ (严肃的)? 2. We can _ (减少) air pollution by riding bicycles. 3. He is _ (挖洞) in the garden. 4. We can _ (回收利用) old things. 5. It is _ (明智的) of you to take a map.,serious,reduce,digging,recycle,wise,Exercises,Homework,Read the text book and learn the new words and phrases by heart.,